Dental-plate retainer



rMmh :1 ,1927.

- 1,619,647 W. R. BADGER DENTAL PLATE, RETAINER- Filed Nov. 20, 1925 INVENTOR 14? ATTORNEY Patented Mar. 1, 1927.

WILLIAM R. BADGER, OF HUBBARD, OHIO.

DENTAL-PLATE RETAINER.

Application filed November 20, 1925-.

The lower denture for artificial, teeth, is veryliable to displacement by theside movemeutof the lower jaw, and stillmore liable to such displacement when the mouth is.

opened tov a determined distance. This causes both annoyance and embarrassment tothe wearer of the false teeth and it is the object of this, my present invention, to provide a simple, cheap and sanitary meansfor effectively holding the denture on the gum in a manner to prevent its displacement from any accidental cause, and further which is of a nature that will not cause discomfort to the user of the invention.

A further object is the provision of a low er tooth plate or denture which has on its sides projecting elements of a nature and construction to snugly accommodate themselves in the mouth and which shall be con tacted by the jaw muscles of the user in an easy and natural manner which will not cause discomfort and which will at all times keep the denture properly seated on the gum.

A further object is the provision of a means for this purpose which may be readily attached to a denture either in the process of the vulcanizing thereof or after such vulcanizat-ion.

A still further object is the provision of a means for this purpose which may be cheaply manufactured, marketed and easily applied to a denture, or removed therefrom should occasion require Without destroying the denture.

To the attainment of the above broadly stated objects and others which will present themselves as the nature of the invention is better understood, reference is to be had to the drawings which accompany and, form part of this application and wherein there is illustrated a satisfactory embodiment of the improvement.

In the drawings:

Figure 1 is a perspective view of a lower denture embodying the improvement.

Figure 2 is a perspective view of the im provement.

Figure 3 is a similar view looking an opposite direction from that disclosed in Figure 2.

Fgure 4 is a sectional view on the line 4-4 of Figure 1.

Referring now to the drawings in detail, the numeral 1 designates a lower denture of Serial N 0. 70,393,

the usual construction, and which has embedded thereinthe false teeth 2.

From an extended professional experience I have found that, the lower dentures are liable to side movement in the mouthiof the wearer which causes their displacement and discomfort and'pain to the user. The greatest liability .of the displacement of the denture, however, occurs when the patient openshi mouth to an extended degree, al'- though such displacements have been occasioned in ordinary articulation. I am aware that efforts have been made to over come this contingency and that devices have been produced wherein protuberances are provided upon the inner surfaces of the denture. These protuberances are designed to be contacted by the tongue of the user which is not only a source of inconvenience but renders articulation imperfect. Further I have knowledge of rubber suction cups being employed. These have proven both defective and unsanitary, and in order to overcome the defects of such devices I have endeavored to produce a simple means which is naturally engaged by the side muscles of the cheeks of the user of a denture in a manner whereby the said denture is effectively retained in the mouth of the wearer but which permits of the removal of the denture when required. The improvement may be constructed of any desired material which is practically non-porous and non-oorrodingu Therefore the improvement is preferably, but,'of course, not necessarily, constructed of metal, such as gold, platinum or the like. The improvement contemplates a body portion 3, this body portion having on its rear a bendable flange or extension 4. The body 3 has its outer periphery rounded so that the same is in the nature of a segment. All of the corners or edges of the body are rounded so that no sharp surfaces are provided. The outer face of the body is dished, as at 5, and the flange 4 has its edges formed with prong extensions 6. These prongs are rounded so that the same are embedded in the sides of the denture 1, as clearly disclosed in Figure 1 of the drawings. The flange and prongs may be arranged in the denture when the same is vulcanized or may be likewise arranged in a finished denture by drilling or cutting suitable openings therein, and thereafter vulcanizing exposed parts. The body is arranged above the low 7 user. The body 5 offers a protrusion on each side of the denture which is engaged in a natural manner by the aW muscles 0: the user and by virtue of such engagement is effectively held seated on the lower gum of the user.

The simplicity of the construction and the advantages thereoi will be appreciated by those skilled in the art to which this invention relates without requiring a more we tended explanation.

Having described the invention, I claim 1. The combination with a lower denture, of a retainer for the purpose set forth, comprising a plate constructed of non-absorbing and noncorrosive material adapted to be embedded in said denture with a portion projecting laterally from the outer side vature thereof,

therof between the upper and lower edges of said denture, said plate being crescentshaped in plan and having its upper surface dished. and its edges rounded, a flange rising from the rear edge of the plate, and bendable prongs projecting upwardly from the corners of said flange as and for the purpose specified.

2. The combination with a denture, of a retaining plate projecting outwardly from the denture at a point between the upper and lower edges thereof and having its outer edge rounded, a curved flange formed on one edge of the plate, and bendable prongs pro jecting upwardly from the corners of the flange and forming a continuity of the curwith said flange in said denture.

In testimony whereof I aifix my signature.

WILLIAM R. BADGER.

and adapted to be embedded 

